PET protective film materials are transparent and colorless, and the surface has been hardened. Generally, the hardness value of PET protective film materials varies between 3H and 4H depending on the origin. The better the surface hardening, the stronger the wear resistance. Light transmittance is also a major property of PET protective film materials. Generally, the light transmittance is above 90%. Higher light transmittance not only provides a good visual effect when using related instruments but also has a protective effect on the eyes.
Everyone knows that the usage rate of PET protective film in the electronics industry is very high, and tapes of different thicknesses are used in different applications. PET protective film thicknesses range from 30μm to 245μm on the market. Let's analyze the performance of PET protective films of different thicknesses and their main applications.
30μm PET protective film
Although thin, it has good shear resistance and excellent adhesive strength. Its aging resistance and UV resistance are also excellent, with a low probability of fogging. It is generally used for LCD panels and fixed nameplates.
50μm-60μm PET protective film
Belongs to the category of thin and light varieties, but also maintains good adhesion effects. Mainly used for the pasting of nameplates, earphone microphone attachments, fixing of digital camera reflective films, fixing between LCD reflectors and backlights, and fixing of mobile phone central buttons.
80μm PET protective film
It has good adhesive ability at room temperature and is suitable for pasting on smooth polar surfaces. Used for fixing LCD frames, digital camera buttons and hard materials, and fixing LCD front shells to panels.
100μm PET protective film
It has good adhesive strength on smooth surfaces, mainly used for fixing between LCD backlight modules and frames.
125μm PET protective film
With good comprehensive performance, it has good adhesive performance on most materials and excellent shear resistance and temperature resistance. Mainly used for fixing windows, lenses, fixing LCD modules in digital cameras, and fixing between LCD backlight modules and frames.
150μm PET protective film
It can maintain good adhesion under high and low temperatures, suitable for EPDM sealing strips, and has good resistance to CaCO3 (calcium carbonate). Mainly used for fixing mobile phone windows, lenses, batteries, rubber card slots in digital cameras, and fixing battery panels.
160μm PET protective film
Not only has excellent shear strength, temperature resistance, and adhesion, but also can ensure reliable adhesion effects in harsh external environments. Mainly used for fixing mobile phone windows, lenses, batteries, rubber card slots in digital cameras, and fixing battery panels.
200μm PET protective film
Extremely strong temperature resistance, mainly used for fixing windows, lenses, batteries, rubber card slots, memory cards, and battery panels in digital cameras.
240μm PET protective film
Thicker material with high hardness, generally used in large-scale industrial production. Suitable for fixing molds and decorative parts in furniture, fixing electronic load-bearing components, and bonding to make cards. Generally, the thicker the film, the lower the cost.